Common Linux log files names and usage
To view a common log file called /var/log/messages use any one of the following command:
We will get all logs related details inside in /var/log directory in Centos.
complete logs we will get here including network logs or if you are using VMWARE so, here vm your machine logs also will be store here.
# more -f /var/log/messages# cat /var/log/messages# tail -f /var/log/messages# grep -i error /var/log/messages
- /var/log/messages : General message and system related stuff
- /var/log/auth.log : Authenication logs
- /var/log/kern.log : Kernel logs
- /var/log/cron.log : Crond logs (cron job)
- /var/log/qmail/ : Qmail log directory (more files inside this directory)
- /var/log/httpd/ : Apache access and error logs directory
- /var/log/lighttpd/ : Lighttpd access and error logs directory
- /var/log/nginx/ : Nginx access and error logs directory
- /var/log/apt/ : Apt/apt-get command history and logs directory
- /var/log/boot.log : System boot log
- /var/log/mysqld.log : MySQL database server log file
- /var/log/secure or /var/log/auth.log : Authentication log
- /var/log/utmp or /var/log/wtmp : Login records file
- /var/log/yum.log or /var/log/dnf.log: Yum/Dnf command log file.
Even Ubuntu Server Logs also store in /var/log directory
Log files vpn user in ubuntu
shariq@vpn:/var/log$ sudo cat vmware-network.log
shariq@vpn:/var/log$ cat kern.log
